Dyeing and bleaching machine.



Patented Nov. 20, 1917.

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'Walfa MK 1' T. ALL SOP & w. w. SIBSON.

DYEING AND BLEACHING MACHINE APPLICATION FILED AUGZ]. 1916.

DYEING AND BLEACHING To all LU/2,0771 it may concern:

Be it known that we, THOMAS ALLsoP and lVaL'rnn W. SmsoN, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Dyeing and Bleaching Machines, whereof the following is a specification, reference being had to the accompanying drawings.

The invention relates to dyeing and bleaching machines and more particularly to a means for uniformly heating the treating liquor used in connection with such machines.

I Ieretofore it has been customary to introduce steam directly into the bottom of the treating tank, by means of a pipe or or jets, and thereby raise the bath to the proper temperature. This method is, how ever, open to a number of objections, since if the steam is admitted too violently, it is apt to cause the dye to boil over and scald the operator. Also too much steam impinging on the goods has a tendency to strip oft the color or cause streaks. In addition, it is impossible to keep the temperature of the bath uniform throughout the process.

I t is the object of our invention to obviate these diflicnlties, and provide a method and means by which an absolutely uniform temperature may be maintained throughout the different portions of the treating bath, during the entire operation. 7

To this end we provide means for circulating the treating liquor and means for introducing steam into the liquor before it enters the dyeing tank.

Referring to the accompanying drawings, Figure I, is a perspective view of a circulating dyeing and bleaching machine conveniently illustrating the adaptation of our in vention thereto. I

Fig. II, is a detail plan view of the pump showing the piping connections thereto and also the point of introduction of the steam nozzle.

Our invention comprises generally a tank 1, mounted on appropriate standards 2, 2. Pipe 3, is mounted in standards 2, and eX- tends the entire distance between them. This pipe also serves as a shaft for perporated cylinder 5, which is rotated by any suitable means (not shown). At the same time the treating liquor is forced through Specification of Letters Patent.

MACHINE.

Patented Nov. 20, 1917. 1916. Serial No. 113,472.

pipe 3, and into cylinder 5, which is divided into a plurality of compartments 6.

IVithin cylinder 5, pipe 3, is provided with perforations which serve as inletsfor the treating liquor which is delivered to the pipe by means of pump 8. Pump 8 is mounted on a nected to pipe 3, b i e 10 throu h T 23. Valve 11, provided vviitli handle 7 is interposed ln pipe 10, in such a position as to control outlet pipe 12, which leads from a supply tank (not shown) in which the treatmg liquor is stored when not in use. Pipe 3, may be further connected at 23, to a water supply pipe 13, under control of a valve not shown.

Outlet pipe 14, leads from the bottom of tank 1, through strainer 15, to T 17, from which pipe 16, leads to ump 8, and pipe 18, to the supply tank. Valve 19, interposed in pipe 18, controls the inlet to the supply tank, and may be opened or closed by handle 20.

T 17, further affords a connection for steam pipe 21, by which steam is admitted through nozzle 22, directly to pump 8, see Fig. II. In this way the steam is admitted and thoroughly mixed with the treating liquor before it enters the tank. l

In operation the articles to be dyed or bleached are placed in compartments 6, and cylinder 5, is started rotating. Valve 11, is then opened so that the liquor is forced by means of pump 8, through pipe 3, into cylinder 5, and tank 1. After the liquor has all been introduced into the cylinder, valve 11, is closed, and pump 8, then draws the liquor from tank 1, through outlet pipe 14, and forces it through pipe 10, to pipe 3, by

which it is again introduced into cylinderv 5, whereby a constant and continuous cir culation of the liquor is maintained. Steam is introduced through pipe 21, so that the liquor which is drawn from tank 1, is reheated and thoroughly mixed with steam as it passes through the pump. In this way a stream of uniformly heated treating liquor is constantly circulated through the tank.

At the same time cylinder 5, is revolving slowly, but the direction of rotation of the cylinder is reversed at intervals, so that the goods are constantly changing their relative position. The constant circulation of the dye liquor by means of the centrifugal pump assures thorough penetration and unisuitable base 9, and is 0011- form dyeing results. It also allows goods which would ordinarily have to be dyed at a hard boil to be dyed at a quiet boil and thereby greatly improves the quality of the Work.

Since the heating of plished before it is drawn through the pump, the temperature conditions are absolutely uniform throughout the different portions of the bath, and results in absolutely uniform dyeing. Due to the fact that the steam is thoroughly mixed with the treating liquor before it enters the bath, the treating liquor is maintained absolutely homogeneous throughout the entire bath.

hen the operation is completed, valve 19, is opened and the liquor pumped back into the supply tank.

Pump 8, may be also used for washing the articles in cylinder 5, by opening the water pipe and circulating the water in the same manner as the treating liquor.

It is obvious that minor changes in detail and construction may be made without departing from the spirit of our invention, provided steam be introduced into the treating liquor and thoroughly mixed therewith before it enters the treating cylinder.

Having thus described our invention, We claim:

1. In a dyeing and bleaching machine, the combination of a tank, a rotatable cylinder mounted in said tank, an inlet pipe leading into said cylinder, an outlet pipe leading from said tank, a pump whereby treating liquor is drawn from said tank through said outlet pipe and forced into said inlet pipe and means for introducing steam into said liquor after it has been drawn from said tank and before it is forced into said inlet pipe.

2. In a dyeing and bleaching machine, the combination of a tank, an inlet pipe extend-- ing through said tank, a perforated cylinder axially mounted on said inlet pipe,

the liquor is accommeans forrrotating said cylinder, said in et pipe being provided with perforations in the portion within the cylinder, an outlet pipe leading from said tank, a pump whereby treating liquor is drawn from said tank Copies 0! this patent may be obtained for five cents each, by addressing the through said outlet pipe and forced through said inlet pipe into said cylinder and means for introducing steam into said liquor after it has been drawn from said tank and before it is forced into said inlet pipe.

3. In a dyeing and bleaching machine, the combination of a tank; a rotatable cylinder axially mounted in said tank; an inlet pipe leading into said cylinder; a pump whereby treating liquor is introduced into said inlet pipe; an outlet pipe leading from said tank to said pump; a pipe leading from said pump to said inlet pipe, whereby a continuouscirculation of the liquor is maintained; and means for introducing steam into the liquor in said pump.

a. In a dyeing and bleaching machine, the combination of a tank, an inlet pipe extending through said tank, a rotatable cylinder axially mounted on said inlet pipe, a

pump, an outlet pipe leading from said tank, a T whereby said outlet pipe is connected to said pump, a steam pipe connected to said T, provided with a nozzle, whereby steam is introduced in to said pump, and a connecting pipe leading from said pump to said inlet pipe.

5. In a dyeing and bleaching machine, the combination of a tank, an inlet pipe extending througlr said tank, a rotatable cylinder axially mounted on sail inlet pipe, a pump, a pipe leading from said pump to said inlet pipe, a connection interposed in said pipe leading to a supply tank, a valve for con trolling said connection, an outlet pipe leading from said tank, a T whereby said outlet pipe is connected to said pump and to the supply tank, a valve controlling said connection to the supply tank, and a steam pipe connected" to said T, whereby steam is admitted in to said pump.-

In testimony whereof, we have hereunto signed our names at Philadelphia, Pennsylvama, this twenty-eighth day of July 1916.

THOB'IAS ALLSOP. WVALTER W. SIBSON.

Witnesses JAMES BELL, E. L. FULLERTON.

f Commissioner of Patentv Washington, D. G. 

